Improvement in core-carriages



NITED STATES ATENT OFFICE.

SAMUEL FULTON, OF CONSHOHOOKEN, PENNSYLVANIA.

IMPROVEMENT IN ooR-CARalAeEs.

Specification forming part of Letters Patent No. 32,060, dated April 16, 1861.

To @ZZ whom it may concern:

Be it known that I, SAMUEL FULTON, of Conshohocken, in the countyof Montgomery and State of Pennsylvania, have invented a new and useful Improvement in Core-Oarriages for Drying Cores Used in Casting Pipes; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in whichq Figure l is a transverse vertical `section of my invention, taken in the line a; x, Fig. 2. Fig. 2 is a longitudinal vertical section of the same, taken in the line y y, Fig. 1.

Similar letters of reference indicate corresponding parts in the two iigures.

The object of this invention is to economize in casting or manufacturing the smaller kinds of metal pipes, which may be done by drying alarge number of molds in one pit, and casting a large number of pipes under one and the saine crane. In order, however, to operate effectually. inthis way it is necessary that a number of cores corresponding with the number of molds should be dried simultaneously in one oven, and this result.

cannot be attained with an ordinary core-car- Vriage on which the cores are conveyed into the oven and dried, for the reason that a large number cannot be all equally subjected to the heat. A portion will burn before others are dried. To remedy this difficulty, I employ a corecarriage of novel construction, so' arranged that the cores may be readily shifted within the oven, and their position changed relatively with each other, so as to insure an even heating and drying' of the whole number on the carriage, as hereinafter fully shown and described.

To enable those skilled in the art to fully understand and construct my invention, I Will proceed to describe it.

A represents a frame which is mounted on wheels B. This frame may be composed simply of two parallel side rails, a a, connected at their ends by standards b b, the upper parts of which form the bearings for a shaft, C, which" is allowed to rotate freely in its bear` ings.

On the shaft O there are placed two wheels,`

D D-one near each end. These wheels D are provided with radial arms c, as clearly shown in Fig. l, and each arm c has two lateral prothe purpose set forth.

jections, d-one at theinner sides of the armsand the projections of each wheel form two annular concentric rows, as shown in Fig. l.

In each projection d there is fitted the horizontal shank e of a hook, E. The shanks e are fitted loosely in the projections d, so that the hooks E may, by their own gravity, retain themselves in a vertical position when the shaft O and wheels D D are turned.

On one end of the shaft O there is secured a wheel, F, into which a pinion, G, gears, the axis of said. pinion having a crank, H, attached. By this arrangement the shaft, and consequently the wheels D D, may be turned -with the greatest facility.

The cores I (shown in red) may be formed in the usual or in any proper way, and they are tted on the carriage by placing the ends of their spindlesf in the hooks E of each wheel D, the hooks at the ends of the several cores being in line with each other.

By this-arrangement it will be seen that a large number of cores may be placed on the carriage, and when the latter is within the oven the position of the cores may be gradually shifted by turning the shaft C, and consequently the wheels D, and as the hooks E are allowed to retain themselves in a vertical position at all times, it follows as a matter of course that the position of the cores re1atively with each other gradually change, and the cores, therefore, are not only shifted from the upper to the lower part of the oven by turning the shrft C and Wheels D D, but they are also so clamped in position that :all parts of theirsurfaces are equally Yexposed to the heat, and consequently the entire number of cores on the carriage will be expeditiously and perfectly dried.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

A core-carriage provided with a revolving shaft, C, and Wheels D D, arranged with hooks E, or their equivalents, to serve as bearings for the cores, all being arranged, substantially as shown, to admit of the changing or shifting of the cores within the oven, as and for sAMUnL FULTON.

Witnesses AUGs. SCHWARZ, WM. W. DALBEY. 

